Air Conditioning Repair


Sterling’s expert HVAC technicians will give your furnace the service that it needs. Whatever problem your furnace may have, we can fix it!

Sterling also offers Annual Furnace Maintenance as well as Furnace Protection Plans. Keep your furnace running safe and your energy bills low by having a Sterling technician perform your next annual maintenance. Our 24 point inspection addresses any potential problem in your furnace system for the best safety and efficiency your furnace can deliver. At the end of the inspection, our technicians will provide you advice on ailing parts or possible improvements.

We service all makes and models of furnaces:


1. Air Conditioning Does Not Turn On

This can be narrowed down to a few causes. The first thing to check is your Thermostat batteries. Check the batteries and change them if need be. The next possible cause of an AC system shutdown could be your circuit breaker being tripped. If it is tripped, your AC won’t turn on. Reset the circuit breaker by flipping the switch off and on again. If this doesn’t restart the Air Conditioner, be sure to call Sterling Plumbing & Heating to fix the problem.

Another common cause for your AC unit not turning on is a worn-out compressor and fan controls. If you frequently turn your system on and off, the condenser fan motor, the compressor and the blower motor can begin to faulter. These components all join an electrical connection to start the unit and a faulty connection can prevent the AC system from turning on.

2. Air Conditioner Is Not Blowing Cold Air

It is important to check your AC filter regularly. Once a month should be enough. Clogged and dirty air filters, vents and ducts can potentially freeze up the condenser unit and cut off the supply of cooling power from your Air Conditioner. Changing the filter regularly will help protect the condenser unit from freezing and ensure the stability of cool air circulating through your home.

3. AC Refrigerant Is Leaking

AC refrigerant leakages can greatly impact the effectiveness of your Air Conditioner. The energy efficiency rating of an AC unit is often the swaying factor when comparing models. As leakages increase, the energy efficiency rating of your AC unit will drop. This results in high power consumption, inconsistent cooling, coil freezing and damage to the compressor. A leak is not something that can be ignored.

4. Other Leakages

Don’t be alarmed about water leaking outside from your Air Conditioning unit, especially when it is running on a hot or humid day. This is normal. If the outdoor system is leaking on a cold day, this is also normal. During the colder months in Saskatchewan there is a strong chance your unit will freeze up and leak water when it melts.

It is recommended to monitor any leakages to ensure your AC unit is functioning properly. There are other reasons for your Air Conditioner to leak which include:

  • Dirty air filters
  • Improper installation
  • Blocked drainpipe
  • Low coolant levels
  • Broken condensate pan

5. Air Conditioner Is Making Strange Noises

Any noises coming from your AC unit should be attended to right away. The noises are a biproduct of potential issues that could breakdown your system. Call Sterling Plumbing & Heating if you hear any of these noises:

  • A hissing sound. This could be the sign of a refrigerant leak.
  • Clicking sounds when you turn your AC unit on and off. This could be the result of a relay problem.
  • Any thumping, rattling, or banging noises. These suggest that there is an issue with a blower or the AC motor.
  • Screeching noises. This could mean your compressor or fan motor is not completely operational.
  • Buzzing sounds. This means the electrical components in your Air Conditioner are faulty.

6. The Outdoor System Fan Is Not Spinning When The AC Is Turned On

The malfunctioning fan can lead to and be the cause of a few problems. The most common problem is the evaporator coil freezing. Once the coil freezes up, it stops working. To prevent this, check for blocked vents and ducts, dirty air filters or faulty fans. If any of these components are impacted, the efficiency of your Air Conditioning unit and the air quality circulating into your home can be affected.

7. Drainage Issues

Air Conditioner drainage is crucial to the efficiency and health of your unit pipeline. If the drain pipeline does not drain properly and it becomes clogged with dust, algae and dirt, this could lead to a variety of pipeline issues. Mold, fungus and mildew grow and these produce gasses and bad odours into your home. AC units which are not mounted level are at a higher risk of not draining properly.

Regular maintenance and inspections from the professionals at Sterling Plumbing & Heating is the best preventative method.

8. Thermostat Sensor Issues

The thermostat sensor is vital to accurately control the temperature in your home. The sensor measures and adjusts the air temperature in the evaporating coil based on the condition in the room. The sensor can be pulled out of position over time. It is located adjacent to the evaporating coil, but they never touch. If the thermostat is moved out of position, it can be moved back by bending the wire that holds it in position.

If problems persist and your Air Conditioning unit is not cooling as it should, our cooling specialists will be happy to get your AC running again.

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